Persistent tooth sensitivity even after using sensitivity toothpastes such as Sensodyne or Shy-NM may mean that there is an underlying dental problem that needs proper examination rather than only temporary relief products. Tooth sensitivity can happen due to enamel wear, cavities, gum recession, teeth grinding, cracked teeth, acidic foods, aggressive brushing, or gum disease. If the pain occurs while eating hot, cold, sweet, or sour foods and is continuing despite treatment, it is important to visit a dentist for a detailed dental check-up. The dentist may look for hidden cavities, exposed tooth roots, damaged fillings, or gum problems and may suggest treatments such as fluoride application, dental fillings, desensitising procedures, cleaning, or, in some cases, root canal treatment if the tooth nerve is affected. In the meantime, use a soft-bristled toothbrush and brush gently instead of scrubbing hard. Avoid very hot, cold, acidic, or sugary foods and drinks, and do not rinse immediately after brushing because the toothpaste needs time to work on the teeth. If you grind your teeth during sleep, stress control or a night guard may also help. Since the problem has persisted despite using multiple products, a professional dental evaluation is the best next step to identify and treat the exact cause properly, rather than continuing self-medication.